Paolo Uccello , the great Renaissance painter who was one of the discoverers of how to represent three-dimensional objects on flat surfaces , used to wake up at night in his cold small room in Florence and walk back and forth , crying out loud : " What a lovely thing perspective is ! " meanwhile annoying his sleepy wife no end.

마지막에 나와있는 문장에서 annoy의 타목은 wife인것은

알겠는데 no end는 품사상 부사역할인가요?